They will be available in the marketplace. They should be released any day now. The features are basically the same as the CRM 4 versions, only they have been updated for CRM 2011 and had a number of small bugs fixed. The CRM 4 versions
were packaged into the demo VPC, but the CRM 2011 demo VPC has not been built yet, so I don't know if you will be able to rely on that from a demo standpoint.